I don't know it all. There's a lot I don't know and I'm constantly learning. What I DO know is that he has an algea problem. There's no way he doesn't in a 29 gallon tank with 16 inches of pleco a parrot, and 2 African butterflies. He's obviously worried about overfeeding, but why? What is one SURE THING that excess food produces? That's right kids and newbies, NITRATES! But wait, what's that, algae loves nitrates and will rapidly grow if no plants are present and lights are on for an extended length of time??? WOW! I think I figured out what's going on by reading between the lines. Please give my gold star to the newblet so he doesn't feel bad. Maybe someday he'll grow big and strong with knowledge like teh Great.
P.S You can call me Conquistador if you'd like.